[Xen-users] pv-grub in xen 4.7, ok with kernel 3.x, but fails with 4.x

[Mark Pryor <tlviewer@xxxxxxxxx>]

Hello,

In a xen 4.7 source build, pv-grub works with domU kernel 3.x.x, but not with 4.x.x. So, the recent fc24, xenial, and debian sid/stretch can't use pv-grub.

I see the same error message mentioned here:

https://lists.xen.org/archives/html/xen-devel/2015-11/msg03434.html

  ============= Init TPM Front ================
    Tpmfront:Error Unable to read device/vtpm/0/backend-id during
 tpmfront initialization! error = ENOENT
    Tpmfront:Info Shutting down tpmfront
    pin_table(x) returned 1357193
    close(3)
     Error 9: Unknown boot failure

in the xen-devel post above, I see no resulting patch or resolution to the problem. Ian pointed to:

ea7c8a3 libxc: reorganize domain builder guest memory allocator

which targets stubdom/grub/kexec.c

only one other patch after that hits the same path, and nothing in recent unstable hits it either.

Can anyone else confirm this as a bug, or know of a patch to fix it?

PryMar56

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